How do waterfalls form? a meander gets cut off. sediment builds up. soft rock erodes. flat areas flood.

The correct answer option is C. soft rock erodes.

Explanation:

Usually waterfalls form as the soft rocks erode and streams flow from these soft rocks towards the hard rocks. As the soft rock erodes, it leaves behind a hard ledge over which the stream falls.

This flow of these streams usually takes place in both ways, that is vertically (as it flows down the into the waterfall) and laterally (as it falls across the earth).

Waterfalls are formed as a result of soft rock eroded by water.

Explanation:

Waterfalls usually occur in areas where water flows over a well-eroded rock which, for example, falls sharply at the break line. The water gradually consumes the stone, and the edge of the waterfall recedes upstream, leaving behind a ravine. Often the lower rock layer of the rock is soft so it wears out faster than the upper parts due to water splashing on the bottom of the waterfall, creating a cavity behind the waterfall. Gradually, the tongue formed at the top of the falls deceives and falls into large blocks at the bottom. The boulders will gradually diminish and at the same time wear a deep pool at the bottom of the waterfall. Often, the stream will widen and lower before the edge of the waterfall, and the bottom of the water will also form a similar basin.